The following macro (ALT N keyboard shortcut) closes your current
tab and opens its url in a new window. You have to edit accel.cfg and macros.cfg.
Just open them into Notepad and make the following changes. These files
should be in your K-Meleon\Profiles\default\??????????.slt directory.

Open accel.cfg and add the following lines:

%ifplugin layers
ALT N = macros(open_tab_as_win)
%endif

Open macros.cfg and add the following lines:

open_tab_as_win {
$tmp=$URL;
plugin(layers,"Close");
opennew($tmp)
}

I chose Alt-N because it wasn't in use in my system.. As well you could choose another Cltr or Alt letter combination. Look at access.cfg what keyboard bindings are available (not previously defined) if you don't wan't to use Alt-N. You can also
add this macro into your menu if you edit menus.cfg

Thanks for the macros. I've already used them more than a few times when I surfed into a page which could benefit from having an exclusive tabbed window(20 links, 20 tabs. No waiting for the pages to load since I've already spent time reading the first -- it's great!)

I tried changing the menu so when I clicked on the layer menu I could choose it as an option, but it's not doing it for me.